web_image/
resize.rs

1use crate::error::WebImageError;
2use crate::image::WebImage;
3use image::imageops::FilterType;
4use image::DynamicImage;
5use wasm_bindgen::prelude::wasm_bindgen;
6
7#[wasm_bindgen]
8impl WebImage {
9    /// Resize this image while preserving aspect ratio. The image is scaled to the maximum
10    /// possible size that fits within the bounds specified by max_width and max_height.
11    ///
12    /// returns: Result<WebImage, WebImageError>
13    ///
14    /// # Errors
15    ///
16    /// Errors if conversion to DynamicImage fails
17    pub fn resize(self, max_width: u32, max_height: u32) -> Result<WebImage, WebImageError> {
18        let dynamic_image: DynamicImage = self.try_into()?;
19
20        Ok((&dynamic_image.resize(max_width, max_height, FilterType::Nearest)).into())
21    }
22
23    /// Resize this image while ignoring aspect ratio. The width and height provided become the
24    /// new dimensions for the image
25    ///
26    /// returns: Result<WebImage, WebImageError>
27    ///
28    /// # Errors
29    ///
30    /// Errors if conversion to DynamicImage fails
31    pub fn resize_exact(self, width: u32, height: u32) -> Result<WebImage, WebImageError> {
32        let dynamic_image: DynamicImage = self.try_into()?;
33
34        Ok((&dynamic_image.resize_exact(width, height, FilterType::Nearest)).into())
35    }
36
37    /// Resize this image while preserving aspect ratio. The image is scaled to the maximum
38    /// possible size that fits within the larger (relative to aspect ratio) of the bounds
39    /// specified by width and height, then cropped to fit within the other bound.
40    ///
41    /// returns: Result<WebImage, WebImageError>
42    ///
43    /// # Errors
44    ///
45    /// Errors if conversion to DynamicImage fails
46    pub fn resize_to_fill(self, width: u32, height: u32) -> Result<WebImage, WebImageError> {
47        let dynamic_image: DynamicImage = self.try_into()?;
48
49        Ok((&dynamic_image.resize_to_fill(width, height, FilterType::Nearest)).into())
50    }
51}
web_image/resize.rs

web_image/
resize.rs
